I have quantitative data on that :-)
I asked 10 people for career advice in a semi-structured way (I sent them the same document listing my options and asked them to provide rankings). These were all people I would think rank somewhere between “one of the top cause prioritization experts in the world” to “really, really knowledgeable about EA and very smart”.
6 out of 10 thought that research analyst for OpenPhil would be my best option. But after that, there was much less consensus on the second best option (among my remaining three top options). 3.5 people rated management at an EA organisation highest, 3 rated biosecurity highest, 3.5 rated an MSc in ML (with the aim of doing AI safety research) highest.
Of course, YOU were one of these ten people, so that might explain some of it :-).
I had many more informal discussions, and I didn’t think there was strong consensus either.
(Let me know if you need more data, I have many spreadsheets full of analysis waiting for you ;-) )